package com.sky.controller.user;


import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Api(tags = "C端-菜品浏览接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;
    /*
     * 根据id查询菜品信息
     * */
    @ApiOperation("根据分类id查询菜品信息")
    @GetMapping("/list")
    public Result<List<DishVO>> getDishList(Long categoryId) {
        log.info("根据分类查询菜品:{}",categoryId);
        //构造redis中的key
        String key = "dish_" + categoryId;

        //查询redis中是否存在对应缓存数据
        List<DishVO> dishList = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if(dishList !=null && dishList.size()>0) {
            //如果存在则直接访问redis获取数据
            return Result.success(dishList);
        }

        //如果不存在则从MySQL数据库获取数据,并将数据缓存到redis当中
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);
        dishList = dishService.getDishList(dish);

        //添加缓存
        redisTemplate.opsForValue().set(key,dishList);

        System.out.println("aaa???");
        return Result.success(dishList);
    }
}
